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The Cedar District Formation is a
*'' Baculites rex''
*'' Baculites anceps''
*'' Baculites occidentalis''
*'' Baculites inornatus''
*'' Anapachydiscus nelchinensis''
*'' Metaplacenticeras'' sp.
*'' Canadoceras newberryanum''
*'' Pachydiscus neevesi''
*'' Hoplitoplacenticeras vancouverense''
*'' Gaudryceras denmanense''
*''
geologic formation
A geological formation, or simply formation, is a body of rock having a consistent set of physical characteristics ( lithology) that distinguishes it from adjacent bodies of rock, and which occupies a particular position in the layers of rock exp ...
exposed on Vancouver Island
Vancouver Island is an island in the northeastern Pacific Ocean and part of the Canadian province of British Columbia. The island is in length, in width at its widest point, and in total area, while are of land. The island is the largest by ...
, the Gulf Islands
The Gulf Islands are a group of islands in the Salish Sea between Vancouver Island and the mainland coast of British Columbia.
Etymology
The name "Gulf Islands" comes from " Gulf of Georgia," the original term used by George Vancouver in hi ...
of British Columbia
British Columbia (commonly abbreviated as BC) is the westernmost Provinces and territories of Canada, province of Canada, situated between the Pacific Ocean and the Rocky Mountains. It has a diverse geography, with rugged landscapes that include ...
and San Juan Islands
The San Juan Islands are an archipelago in the Pacific Northwest of the United States between the U.S. state of Washington and Vancouver Island, British Columbia, Canada. The San Juan Islands are part of Washington state, and form the core o ...
of Washington (state)
Washington (), officially the State of Washington, is a state in the Pacific Northwest region of the Western United States. Named for George Washington—the first U.S. president—the state was formed from the western part of the Washin ...
. It preserves fossils
A fossil (from Classical Latin , ) is any preserved remains, impression, or trace of any once-living thing from a past geological age. Examples include bones, shells, exoskeletons, stone imprints of animals or microbes, objects preserved ...
dating back to the Campanian
The Campanian is the fifth of six ages of the Late Cretaceous Epoch on the geologic timescale of the International Commission on Stratigraphy (ICS). In chronostratigraphy, it is the fifth of six stages in the Upper Cretaceous Series. Campani ...
Epoch
In chronology and periodization, an epoch or reference epoch is an instant in time chosen as the origin of a particular calendar era. The "epoch" serves as a reference point from which time is measured.
The moment of epoch is usually decided by ...
of the Cretaceous
The Cretaceous ( ) is a geological period that lasted from about 145 to 66 million years ago (Mya). It is the third and final period of the Mesozoic Era, as well as the longest. At around 79 million years, it is the longest geological period of ...
period
Period may refer to:
Common uses
* Era, a length or span of time
* Full stop (or period), a punctuation mark
Arts, entertainment, and media
* Period (music), a concept in musical composition
* Periodic sentence (or rhetorical period), a concept ...
. It dates to the lower mid-Campanian
The Campanian is the fifth of six ages of the Late Cretaceous Epoch on the geologic timescale of the International Commission on Stratigraphy (ICS). In chronostratigraphy, it is the fifth of six stages in the Upper Cretaceous Series. Campani ...
.
Paleobiology
Flora
*'' Suciacarpa starrii''Fauna
*'' Baculites rex''
*'' Baculites anceps''
*'' Baculites occidentalis''
*'' Baculites inornatus''
*'' Anapachydiscus nelchinensis''
*'' Metaplacenticeras'' sp.
*'' Canadoceras newberryanum''
*'' Pachydiscus neevesi''
*'' Hoplitoplacenticeras vancouverense''
*'' Gaudryceras denmanense''
*''Neophylloceras
''Neophylloceras'' is an extinct genus of cephalopod belonging to the Ammonite
Ammonoids are a group of extinct marine mollusc animals in the subclass Ammonoidea of the class Cephalopoda. These molluscs, commonly referred to as ammonites, a ...
'' sp.
*'' Condonella suciensis''
*Ornithomimidae
Ornithomimidae (meaning "bird-mimics") is a family of theropod dinosaurs which bore a superficial resemblance to modern ostriches. Ornithomimids were fast, omnivorous or herbivorous dinosaurs known mainly from the Late Cretaceous Period of Laura ...
indet.
*Theropoda
Theropoda (; ), whose members are known as theropods, is a dinosaur clade that is characterized by hollow bones and three toes and claws on each limb. Theropods are generally classed as a group of saurischian dinosaurs. They were ancestrally ca ...
indet. (possibly Tyrannosauridae
Tyrannosauridae (or tyrannosaurids, meaning "tyrant lizards") is a family of coelurosaurian theropod dinosaurs that comprises two subfamilies containing up to thirteen genera, including the eponymous ''Tyrannosaurus''. The exact number of genera ...
)
See also
*List of fossiliferous stratigraphic units in Washington (state)
This article contains a list of fossil-bearing stratigraphic units in the state of Washington, U.S.
Sites
See also
* Paleontology in Washington (state)
References
*
{{DEFAULTSORT:Fossiliferous stratigraphic units in Washington (state) ...
* Paleontology in Washington (state)
Paleontology in Washington encompasses Paleontology, paleontological research occurring within or conducted by people from the United States, U.S. state of Washington (state), Washington. Washington has a rich fossil Fossil record, record spanning ...
References
* Cretaceous geology of Washington (state) {{Cretaceous-stub